expected to test components of the SCE-200 engine, so an upgraded version of the GSLV Mk III was not expected before 2022. The SCE-200 engine is reported to be based on the Ukrainian RD-810, which itself is proposed for use on the Mayak family of launch vehicles. Induction of C32 stage The C25 stage with nearly propellant load will be replaced by the C32, with a higher propellant load of . The C32 stage will be re-startable and with uprated CE-20 engine. Total mass of avionics will be brought down by using miniaturised components. On 30 November 2020, Hindustan Aeronautics Limited delivered an aluminium alloy based cryogenic tank to ISRO. The tank has a capacity of of fuel, and a volume of . On 9 November 2022, CE-20 cryogenic engine of upper stage was tested with an uprated thrust regime of 21.8 tonnes in November 2022. Along a suitable stage with additional propellant loading this could increase payload capacity of LVM3 to GTO by up to . On 23 December 2022, CE-20 engine E9 was hot tested for 650 second duration. For the first 40 seconds of test, the engine was operated at 20.2 tonne thrust level, after this engine was operated at 20 tonne off-nominal zones and then for 435 seconds it was operated at 22.2 tonne thrust level. With this test, the 'E9' engine has been qualified for induction in flight. Human-rating While the GSLV Mk III is being human rated for Gaganyaan project, the rocket was always designed with potential human spaceflight applications in consideration. The maximum acceleration during ascent phase of flight was limited to 4 Gs for crew comfort and a diameter payload fairing was used to be able to accommodate large modules like space station segments. Furthermore, a number of changes to make safety-critical subsystems reliable are planned for lower operating margins, redundancy, stringent qualification requirements, revaluation, and strengthening of components. Avionics: Quad-redundant Navigation and Guidance Computer (NGC) Dual chain Telemetry & Telecommand Processor (TTCP) Integrated Health Monitoring System (LVHM) Launch Vehicle: High Thrust Vikas engines (HTVE) of L110 core stage will operate at a chamber pressure of 58.5 bar instead of 62 bar. Human rated S200 (HS200) boosters will operate at chamber pressure of 55.5 bar instead of 58.8 bar. Segment joints will have three O-rings each. Electro mechanical actuators and digital stage controllers will be employed in HS200, L110 and C25 stages.